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  <meta content="2018-10-23T06:18:10.521000000" name="created"/>
  <meta content="2023-12-12T09:31:23" name="changed" translator="gocpicnic"/>
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  <title>
   <!-- Demultiplexer -->
   解复用器
  </title>
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   <h1>
    <!-- <img class="iconlibs" src="../../../../icons/6464/demultiplexer.png" alt="#########" height="32" width="32"> <em>Demultiplexer</em> -->
    <img alt="#########" class="iconlibs" height="32" src="../../../../icons/6464/demultiplexer.png" width="32"/>
    <em>
     解复用器
    </em>
   </h1>
   <table>
    <tbody>
     <tr>
      <td>
       <!-- <strong>Library:</strong> -->
       <strong>
        库:
       </strong>
      </td>
      <td>
       <!-- <a href="index.html">Plexers</a> -->
       <a href="index.html">
        复用器
       </a>
      </td>
     </tr>
     <tr>
      <td>
       <!-- <strong>Introduced:</strong> -->
       <strong>
        介绍:
       </strong>
      </td>
      <td>
       2.0 Beta 11
      </td>
     </tr>
     <tr>
      <td valign="top">
       <!-- <strong>Appearance:</strong> -->
       <strong>
        外观符号:
       </strong>
      </td>
      <td valign="top">
       <img alt="#########" class="appearancelibs" height="64" src="../../../../img-libs/demux.png" width="64"/>
      </td>
     </tr>
    </tbody>
   </table>
   <h2>
    <!-- Behavior -->
    行为
   </h2>
   <p>
    <!-- Copies the input on the west edge onto exactly one of the outputs on the east edge; which of these outputs is specified via the current value received through the input on the south edge. I find it useful to think of a demultiplexer as analogous to a railroad switch, controlled by the select input. -->
    将西边的输入复制到东边的输出之一； 这些输出中的哪一个是通过南边缘输入接收到的当前值指定的。 我发现将解复用器视为类似于铁路开关，由选择输入控制是有用的。
   </p>
   <p>
    <!-- (Incidentally, some authorities spell this <em>demultiplex<strong>o</strong>r</em>, but <em>demultiplex<strong>e</strong>r</em> is the predominant spelling.) -->
    （顺便说一句，一些权威机构将其拼写为
    <em>
     deplex
     <strong>
      o
     </strong>
     r
    </em>
    ，但
    <em>
     deplex
     <strong>
      e
     </strong>
     r
    </em>
    是主要拼写。）
   </p>
   <h2>
    <!-- Pins (assuming component faces east, select is bottom/left) -->
    引脚（假设元件朝东，选择底部/左侧）
   </h2>
   <dl>
    <dt>
     <!-- West edge (input, bit width matches Data Bits attribute) -->
     西边（输入，位宽与数据位属性匹配）
    </dt>
    <dd>
     <!-- The value to be routed to one of the outputs on the east edge. -->
     要路由到东边缘的输出之一的值。
    </dd>
    <dt>
     <!-- East edge, variable number (outputs, bit width matches Data Bits attribute) -->
     东边，可变数量（输出，位宽与数据位属性匹配）
    </dt>
    <dd>
     <!-- The outputs are numbered starting with 0 on the north. An output will match the west input if its number matches the value currently received through the select input on the south; otherwise, its value will be either all-zeroes or all-floating, depending on the value of the Three-State? attribute. If the select input contains any unspecified bits, then all outputs are floating. -->
     输出的编号从北边的 0 开始。 如果输出的编号与当前通过南边的选择输入接收到的值匹配，则输出将与西边的输入匹配； 否则，其值将是全零或全浮点，具体取决于三态的值？ 属性。 如果选择输入包含任何未指定的位，则所有输出都是浮动的。
    </dd>
    <dt>
     <!-- South edge, left side (input, bit width 1) -->
     南边，左侧（输入，位宽1）
    </dt>
    <dd>
     <!-- Enable: When 0, all outputs consist of all floating bits, regardless of the data and select inputs. -->
     启用：为 0 时，所有输出均包含所有浮动位，无论数据和选择输入如何。
    </dd>
    <dt>
     <!-- South edge, right side indicated by gray circle (input, bit width matches Select Bits attribute) -->
     南边，灰色圆圈表示的右侧（输入，位宽与 Select Bits 属性匹配）
    </dt>
    <dd>
     <!-- Select input: The value of this input determines to which output on the east edge to route the value received on the west edge. -->
     选择输入：此输入的值确定将西边缘接收的值路由到东边缘的哪个输出。
    </dd>
   </dl>
   <h2>
    <!-- Attributes -->
    属性
   </h2>
   <p>
    <!-- When the component is selected or being added, the digits '1' through '4' alter its <q>Select Bits</q> attribute, Alt-0 through Alt-9 alter its <q>Data Bits</q> attribute, and the arrow keys alter its <q>Facing</q> attribute. -->
    当选择或添加元件时，数字“1”到“4”会更改其
    <q>
     选择位
    </q>
    属性，Alt-0到Alt-9会更改其
    <q>
     数据位
    </q>
    属性 ，方向键更改其
    <q>
     方向
    </q>
    属性。
   </p>
   <dl>
    <dt>
     <!-- Facing -->
     方向
    </dt>
    <dd>
     <!-- The direction of the component (specifying which side has the outputs). -->
     元件的方向（指定哪一侧有输出）。
    </dd>
    <dt>
     <!-- Select Location -->
     选择位置
    </dt>
    <dd>
     <!-- The location of the select and enable lines relative to the component. -->
     选择线和启用线相对于元件的位置。
    </dd>
    <dt>
     <!-- Select Bits -->
     选择位
    </dt>
    <dd>
     <!-- The bit width of the component's select input on its south edge. The number of outputs for the demultiplexer will be 2<sup><var>selectBits</var></sup>. -->
     元件南边缘的选择输入的位宽度。 解复用器的输出数量将为 2
     <sup>
      <var>
       selectBits
      </var>
     </sup>
     。
    </dd>
    <dt>
     <!-- Data Bits -->
     数据位
    </dt>
    <dd>
     <!-- The bit width of the data being routed through the demultiplexer. -->
     通过解复用器路由的数据的位宽度。
    </dd>
    <dt>
     <!-- Three-state? -->
     三态？
    </dt>
    <dd>
     <!-- Specifies whether the unselected outputs should be floating (Yes) or zero (No). -->
     指定未选择的输出应该浮动（是）还是零（否）。
    </dd>
    <dt>
     <!-- Disabled Output -->
     禁用输出
    </dt>
    <dd>
     <!-- Specifies what each bit of the outputs should be when the component is disabled (i.e., when the enable pin is 0). Options include zero and floating; in the latter case, the outputs are effectively disconnected from any other ports. -->
     指定当元件被禁用时（即，当启用引脚为 0 时）输出的每一位应该是什么。 选项包括零和浮动； 在后一种情况下，输出实际上与任何其他端口断开。
    </dd>
    <dt>
     <!-- Include Enable? -->
     包括启用吗？
    </dt>
    <dd>
     <!-- The component has an enable input when this attribute is <q>yes.</q> The attribute is primarily for supporting circuits built using older versions of Logisim that did not provide an enable input. -->
     当该属性为
     <q>
      yes
     </q>
     时，该元件具有启用输入。该属性主要用于支持使用不提供启用输入的旧版本 Logisim-evolution 构建的电路。
    </dd>
   </dl>
   <h2>
    <!-- Poke Tool Behavior -->
    Poke 工具行为
   </h2>
   <p>
    <!-- None. -->
    无
   </p>
   <h2>
    <!-- Text Tool Behavior -->
    文本工具行为
   </h2>
   <p>
    <!-- None. -->
    无
   </p>
   <p>
    <!-- <a href="../index.html">Back to <em>Library Reference</em></a> -->
    <b>
     返回
    </b>
    <a href="../index.html">
     电路元件库参考手册
    </a>
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